<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 头部区域 -->
      <el-row :gutter="10">
        <!-- 输入搜索框 -->
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList ">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>

        <!-- 添加商品 -->
        <el-col :span="4">
          <el-button type="primary" @click="goAddpage">添加商品</el-button>
        </el-col>
      </el-row>

      <!-- table内容区域 -->
      <el-table :data="goodslist" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column prop="goods_name" label="商品名称"></el-table-column>
          <el-table-column prop="goods_price" label="商品价格(元)"></el-table-column>
          <el-table-column prop="goods_weight" label="商品重量"></el-table-column>
          <el-table-column prop="add_time" label="创建时间" >
              <template slot-scope="scope">
                {{scope.row.add_time | dateFormat}}
              </template>
          </el-table-column> 
          <el-table-column label="操作" >
              <template slot-scope="scope">
                  <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEdit(scope.row.id)">编辑</el-button>
                  <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)">删除</el-button>
              </template>
          </el-table-column> 

    
      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 20, 50]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total" background>
    </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 查询参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      // 商品列表
      goodslist: [],
      // 总数据条数
      total: 0,
    }
  },
  created() {
    // 获取商品列表数据
    this.getGoodsList()
  },
  methods: {
    //   根据分页获取对应的商品列表 
    async getGoodsList() {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品信息失败')
      }
      //console.log(res.data)
      this.$message.success(res.meta.msg)
      this.goodslist = res.data.goods
      this.total = res.data.total
    },
    handleSizeChange(newSize) {
        this.queryInfo.pagesieze = newSize
        this.getGoodsList()
    },
    handleCurrentChange(newPage) {
        this.queryInfo.pagenum = newPage
        this.getGoodsList()
    },
    // 根据id删除商品信息
    async removeById(id) {
        const comfirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        if (comfirmResult !== 'confirm') {
            return this.$message.info('已取消删除操作')
        }
        const {data: res} = await this.$http.delete(`goods/${id}`)
        if (res.meta.status !== 200) {
            return this.$message.error(res.meta.msg)
        }
        this.$message.success(res.meta.msg)
        this.getGoodsList()
    },
    goAddpage() {
        this.$router.push('/goods/add')
    }
  },
}
</script>

<style lang="less" scoped>
</style>